Siemens SINUMERIK 840D sl Programming Manual page 183

N9 X0 Y0 G90 F100
N10 POLY PO[Y]=(2) PO[X]=(4,0.25) PL=4
Description
The control system is capable of traveling curves (paths) in which each selected path axis
follows a function (polynomial, max. 3rd degree) or (polynomial, max. 5th degree)
The equation used to express the polynomial function is generally as follows:
f(p)= a
or
f(p)= a
Key:
a : Constant coefficients
n
p: Parameters
Job planning
Programming Manual, 03/2006 Edition, 6FC5398-2BP10-1BA0
+ a p + a p + a p
2 3
0 1 2 3
+ a p + a p + a p + a
2 3
0 1 2 3
5.5 Polynomial interpolation (POLY, POLYPATH)
p + a p
4 5
4 5
Special Motion Commands
5-19